The Bilala or Bulala are a Muslim people that live around Lake Fitri, in the Batha Prefecture, in central Chad.

The last Chadian census in 1993 stated that they numbered 136,629 persons.

Their language, Naba, is divided in four dialects and is in the Nilo-Saharan group; it is shared by two of their neighbors, the Kuka and the Medogo.

These three peoples are collectively known as Lisi and are believed to be descendants of main ethnic groups of the Sultanate of Yao.